5/14/2015
1. When ionic compounds are named, the name of a monatomic anion
will end in which of the following suffixes?
A -ic
B -ite
C -ate
D -ide
2. What is the name of the compound with the formula PCl5?
A Phosphorus(I) chloride
B Phosphorus(V) chlorine
C Phosphorus pentachlorate
D Phosphorus pentachloride
3. Which of the following is the correct Lewis electron-dot diagram for the
sodium atom?
7. The diagram shows water molecules in an open
beaker and water molecules that have evaporated into
the air above the beaker. Which change in this system
will increase the rate of evaporation?
A Adding salt to the water
B Increasing the temperature of the water
C Increasing the pressure of the air above the water
D Increasing the humidity of the air above the water
8. Based on its position in the periodic table, the element sulfur would be
expected to have how many valence electrons?
F4
G6
H8
J 16
9. Which is the best use for a fume hood?
A Storing glassware
B Removing toxic vapors
C Covering volatile compounds
D Mixing chemicals that release O2
4. How many electrons does the iron ion have when it forms the ionic
compound FeCl3?
F 20
G 23
H 26
J 29
5. When an electric current is passed through water, the reaction
shown takes place. If the arrow were pointing in the opposite direction,
what type of reaction would the new reaction represent?
A Single-replacement
B Double-replacement
C Synthesis
D Decomposition
6. Which of the following is a chemical change?
F Salt is dissolved in water.
G Water is boiled on a stove.
H Gasoline combusts in an engine.
J Copper metal is stretched into a long wire.
10. If the temperature changes from point M to point N, at constant
pressure, compound X undergoes -F one phase change
G two phase changes
H three phase changes
J no change in phase
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